CN110231396A - Abrasive grain based on the vortex-like coil penetration measurement of plane monitors sensor on-line - Google Patents
Abrasive grain based on the vortex-like coil penetration measurement of plane monitors sensor on-line Download PDFInfo
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- CN110231396A CN110231396A CN201910466188.1A CN201910466188A CN110231396A CN 110231396 A CN110231396 A CN 110231396A CN 201910466188 A CN201910466188 A CN 201910466188A CN 110231396 A CN110231396 A CN 110231396A
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- 239000006061 abrasive grain Substances 0.000 title claims abstract description 42
- 238000005259 measurement Methods 0.000 title claims abstract description 22
- 230000035515 penetration Effects 0.000 title claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 230000033228 biological regulation Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000010355 oscillation Effects 0.000 claims abstract description 8
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 5
- 230000035945 sensitivity Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 55
- 238000012544 monitoring process Methods 0.000 claims description 20
- 210000005239 tubule Anatomy 0.000 claims description 11
- 239000000346 nonvolatile oil Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 9
- 230000005674 electromagnetic induction Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 description 11
- 230000005611 electricity Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005291 magnetic effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000035874 Excoriation Diseases 0.000 description 1
- 241000272169 Larus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0266—Investigating particle size or size distribution with electrical classification
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9006—Details, e.g. in the structure or functioning of sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
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- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Dispersion Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Abrasive grain based on the vortex-like coil penetration measurement of plane monitors sensor, including hard runner and circuit board on-line, is connected in a manner of gluing in sensor outer housing inner barrel between the oil inlet runner and fuel-displaced runner of hard runner；Circuit board is installed on the liner plate of oil inlet runner, and circuit board matrix is embedded with the coil to connect with oscillation compensation circuit, and circuit board matrix surface is provided with the adjustment of sensitivity knob to connect with filtering and amplifying circuit and the binding post to connect with direct current regulation circuit；The present invention is based on the principle of electromagnetic induction, the vortex-like monocoil structure of plane, pipeline roads to realize the capture to the abrasive grain disturbing signal in oil liquid through and perpendicular to the measurement pattern of plane where vortex-like coil, minimum can incude and export 40 μm of ferromagnetic metal grain signal and 80 μm of non-ferromagnetic metal grain signal, compared to existing sensor technology, the present invention is not influenced vulnerable to abrasive grain continuity, it increases, reacts sensitiveer to particle size accuracy of identification.
Description
Technical field
The present invention relates to mechanical equipment states to analyze observation and control technology field, and in particular to online Oil Monitoring Technique field
Abrasive grain monitoring sensor technology, in particular to a kind of abrasive grain based on the vortex-like coil penetration measurement of plane monitor sensing on-line
Device.
Background technique
Equipment operational monitoring has become the essential technological means of health status of analysis and all types of machinery of maintenance,
The Debris Analysis of middle equipment oriented lubricating oil system is a kind of highly effective method: direct production of the abrasive grain as the secondary abrasion of friction
Object carries the wear information of a large amount of preciousnesses, and size, color, concentration etc. can be used as Analysis of Wearing Mechanism and state of wear
The important evidence of monitoring.There is document to show that Debris Analysis can find earlier that failure develops and provide early warning than other technologies, because
This becomes current research hotspot (Zhu X, Zhong C, Zhe J.Lubricating oil conditioning
sensors for online machine health monitoring–A review[J].Tribology
International,2017,109:473-484.).Also, Debris Analysis does not need shutdown inspection, will not both waste equipment fortune
Row cost in turn avoids generating adverse effect to the normal work of equipment, this country many to aerospace industry, manufacturing industry etc. closes
Key industry is of great significance.
In all types of sensors for serving Debris Analysis, electromagnetic induction type sensor good, structure by its real-time
It is relatively easy, be easily achieved the advantages that on-line monitoring, wide application prospect has been shown in field.Currently, in reality
The electromagnetic induction type sensor main representative being used widely in production is what GasTOPS company, Canada developed
MetalSCAN series of products, the ferromagnetic particle and 250 μm or more of non-ferromagnetic debris that monitoring range is 100 μm or more,
The sensor clamshell is acidproof anti-corrosion with pipeline, is suitable for more harsh operating condition.Similarly, U.S. MACOM
Technologies company has developed TechAlertTM10, Britain Kittiwake Developments company has developed
ANALEXrsTotal FerrousDebris Sensor can monitor the ferromagnetic particle greater than 50 μm respectively and be greater than 150 μ
The non-ferromagnetic debris of m, the ferromagnetic particle greater than 40 μm and the non-ferromagnetic debris greater than 135 μm, in the row such as wind-powered electricity generation, ship
Industry has obtained certain application.
The working principle of above several sensors is almost the same, relies primarily on three solenoid coils and collinearly arranges to be formed
One group of structure abrasive grain is monitored, in continuous practice, great drawback exposed day by day caused by the structure: due to each
Grade coil turn is excessive, also needs vacant certain distance to prevent interfering with each other between each coil, causes the type sensor because along oil
The size of tube axis direction is too long and incudes the period elongation of abrasive grain, output signal, therefore when abrasive grain continues through, sensor will
The signal for exporting aliasing, will further cause abrasive grain information analysis mistake.But in view of measurement accuracy is needed by stronger line
Magnetic field is enclosed to guarantee, coil turn can not be reduced excessively.However, such sensor is for existing even if not reducing coil turn
When field measurement, since environmental factor is such as vibrated, the influence of electromagnetic field, measurement accuracy is often produced between products propaganda data
Raw relatively large deviation, it means that such sensor only has higher reliability when identifying the big abrasive grain in actual environment.
Through analysis it is found that existing electromagnetic induction type sensor has a clear superiority in basic principle, configuration aspects, but its
Structurally and functionally there is serious contravention, therefore new electromagnetic induction type sensor design scheme needs to obtain research and development,
And new scheme should meet sensor output not vulnerable to the successional influence of abrasive grain, monitoring accuracy height, not vulnerable to extraneous ring as far as possible
The demand of border factor interference etc., in order to more efficiently carry out Debris Analysis and equipment state operational monitoring work.
Summary of the invention
The drawbacks of for existing electromagnetic induction type sensor technology, to enable electromagnetic induction type sensor preferably to service
It works in status monitoring, the purpose of the present invention is to provide a kind of abrasive grains based on the vortex-like coil penetration measurement of plane to supervise online
Sensor is surveyed, is quick on the draw, is not influenced vulnerable to abrasive grain continuity, it is minimum in actual production environment to incude and export 40 μm
Ferromagnetic metal grain signal and 80 μm of non-ferromagnetic metal grain signal；And it is done since shelling machine can effectively shield electromagnetism
Disturb, runner design can effectively weaken external hose and swing influences, the present invention surveys the grain signal obtained and has stiff stability and repetition
Property.
In order to achieve the above object, technical scheme is as follows:
Abrasive grain based on the vortex-like coil penetration measurement of plane monitors sensor, including shell, hard runner and electricity on-line
Road plate 3；
The shell includes cylinder 6, and the both ends of cylinder 6 are threadedly coupled fixed left end cap 1 and right end cap 5；
The hard runner includes oil inlet runner 2 and fuel-displaced runner 4, and two runners are each passed through left end cap 1 and right end cap 5 simultaneously
It is fixed with nut from outside；Connected inside sensor outer housing cylinder 6 in a manner of gluing between oil inlet runner 2 and fuel-displaced runner 4
It connects.
The circuit board 3 is installed on the liner plate 2-4 of oil inlet runner 2, and circuit board 3 includes being loaded with the electricity for monitoring required circuit
Configured with circuit needed for monitoring, including direct current regulation circuit, oscillation compensation electricity on road plate matrix 3-1, circuit board matrix 3-1
Road, filtering and amplifying circuit；Wherein direct current regulation circuit accesses 18~24V direct current；Oscillation compensation circuit can pass through in abrasive grain
When, generate the positive signal that compensation abrasive grain bears disturbance caused by cell winding；Filtering and amplifying circuit exports the positive voltage of 0~5V
Signal；Circuit board matrix 3-1 be embedded with the oscillation coil 3-2 that connects of compensation circuit, the surface circuit board matrix 3-1 be provided with
The binding post 3-3 that direct current regulation circuit connects, and the adjustment of sensitivity knob 3-4 to connect with filtering and amplifying circuit.
8 countersunk head threaded hole A are evenly distributed on the left end cap 1 of the sensor outer housing, 5 circumference of right end cap respectively to be used for and cylinder
6 are connected, and have 1 outwardly extending through-hole B at center respectively, for being installed into oil stream road 2 and fuel-displaced runner 4, the through-hole B at center
There are 2 threaded hole C in outer circumference respectively, for being screwed into screw stationary flowpath from outside；The central through hole and right end of right end cap 5
1 threaded hole D is provided between lid circumference；6 side surface of cylinder is along the circumferential direction evenly equipped with 4 threaded hole E, the aperture of threaded hole E
Position is right against the side surface liner plate 2-4 of oil inlet runner 2, for clamping the liner plate 2-4 structure on oil inlet runner 2.
1 location hole F is disposed on each angle described matrix 3-1.
The coil 3-2 is the vortex-like hollow structure of plane, which is runner hole G, the extension for oil inlet runner 2
Tubule 2-5 is passed through, and when monitoring is vertically flowed through using oil liquid measures mould in the penetration of plane where the vortex-like coil 3-2 of plane
Formula.
The oil inlet runner 2 includes being orderly used to the left side for connecting the left minor thread 2-1 of hose, fixing oil inlet runner from outside
There are two left abnormity slot 2-6 to use for band on major thread 2-2, Zuo Yuanpan 2-3, liner plate 2-4 and extension tubule 2-5, Zuo Yuanpan 2-3
In from the fixed oil inlet runner in inside, the left abnormity position slot 2-6 is corresponding with the threaded hole C on left end cap；It is provided on liner plate 2-4
4 threaded hole H of fixing circuit board 3.
The fuel-displaced runner 4 includes being orderly used to the right side for connecting the right minor thread 4-1 of hose, fixing fuel-displaced runner from outside
The variable diameter conical pipe 4- of major thread 4-2, band there are two the right disk 4-4 of right special-shaped slot 4-3 and for being bonded oil inlet runner 2
5, the right abnormity position slot 4-3 is corresponding with the threaded hole in right end cap central through hole outer circumference；Variable diameter conical pipe 4-5's is interior
Portion penetrates through the extension tubule 2-5 outer diameter that radius is greater than oil inlet runner 2.
The present invention has the advantage that compared with existing electromagnetic induction type sensor technology
1, circuit board wire coil 3-2 of the present invention is in the vortex-like structure of plane, is connected with high-frequency alternating current, and when monitoring takes oil line pipe
Across the measurement pattern of coil hollow structure, compared to prior art, coil dimension and the number of turns significantly reduce, not vulnerable to abrasive grain
Continuity influences, and reacts more sensitive.
2, the present invention minimum ferromagnetic metal grain signal that can be perceived and export 40 μm and 80 μm in the actual environment
Non-ferromagnetic metal grain signal, compared to prior art, particle size accuracy of identification has obtained large increase.
3, shell of the present invention is made of high magnetic permeability metal, in addition to having stronger impact resistance, can also effectively shield electricity
Magnetic disturbance；Runner and shell are fixed with thread connection, are avoided oscillating waveform caused by waving because of external hose, have been ensured abrasive grain
The stability and repeatability of signal.
4, the present invention is applied in the lubricating oil on-line monitoring of mechanical equipment, can obtain accurate, stable grain signal, and
Overall volume is small, facilitates without abrasive grain accumulation, installation, is conducive to provide for abrasive grain information analysis, the judgement of equipment attrition state reliable
And effective initial data.
Detailed description of the invention
Fig. 1 is oblique two sectional view of entirety of the invention.
Fig. 2 is the main view of circuit board 3 of the invention.
Fig. 3 is the main view of left end cap 1 of the invention.
Fig. 4 is the main view of right end cap 5 of the invention.
Fig. 5 is the main view of cylinder 6 of the invention.
Fig. 6 (a) is the main view of the oil inlet runner 2.
Fig. 6 (b) is the left view of the oil inlet runner 2.
Fig. 7 (a) is the main view of fuel-displaced runner 4.
Fig. 7 (b) is the right view of fuel-displaced runner 4.
Fig. 8 is the continuous grain signal observation chart of typical case that present invention survey obtains.
Specific embodiment
Narration in detail is made to structural principle of the invention and working principle with reference to the accompanying drawing.
As shown in Figure 1, the abrasive grain based on plane vortex-like coil penetration measurement monitors sensor on-line, including it is shell, hard
Mass flow road and circuit board 3, when monitoring, are vertically flowed through using oil liquid in plane where the vortex-like main measuring cell coil 3-2 of plane
Penetration measurement pattern.
As shown in Figure 1, the shell includes cylinder 6, the both ends of cylinder 6 are threadedly coupled fixed left end cap 1 and right end cap 5；
As shown in Figure 1, the hard runner includes oil inlet runner 2 and fuel-displaced runner 4, two runners are each passed through left end cap 1
It is with right end cap 5 and fixed from outside with nut, prevent runner from moving radially；With gluing between oil inlet runner 2 and fuel-displaced runner 4
Mode connected inside sensor outer housing cylinder 6.
As shown in Figure 1, the circuit board 3 is installed on the liner plate 2-4 of oil inlet runner 2；As shown in Fig. 2, circuit board 3 includes
Be loaded with monitor needed for circuit circuit board matrix 3-1, monitor required circuit include direct current regulation circuit, oscillation compensation circuit,
Filtering and amplifying circuit；Wherein direct current regulation circuit accesses 18~24V direct current；Vibrate compensation circuit can when abrasive grain passes through,
Generate the positive signal that compensation abrasive grain bears disturbance caused by cell winding；Filtering and amplifying circuit exports the positive voltage letter of 0~5V
Number；Circuit board matrix 3-1 be embedded with the oscillation coil 3-2 that connects of compensation circuit, the surface circuit board matrix 3-1 be provided with directly
The binding post 3-3 that stream voltage regulator circuit connects, and the adjustment of sensitivity knob 3-4 to connect with filtering and amplifying circuit.
As shown in figure 3,8 countersunk head threaded hole A are evenly distributed on the left end cap 1 of the sensor outer housing, 5 circumference of right end cap respectively
Have respectively for being connected with cylinder 6, at center 1 outwardly extending through-hole B for be installed into fuel-displaced runner 2 and 4, center it is logical
There are 2 threaded hole C for being screwed into screw stationary flowpath from outside in the B outer circumference of hole respectively；As shown in figure 4, in right end cap 5
1 threaded hole D is provided between heart through-hole and right end cap circumference, for installing plug wire head, convenient for the circuit board 3 and extraneous power supply
Wiring；As shown in figure 5,6 side surface of cylinder is along the circumferential direction evenly equipped with 4 threaded hole E, the position of opening of threaded hole E is right against
The side surface liner plate 2-4 of oil inlet runner 2, for clamping the liner plate 2-4 on oil inlet runner 2.
As shown in Fig. 2, 1 location hole F is disposed on each angle described matrix 3-1, for circuit board to be fixed on oil inlet
On the liner plate 2-4 of runner 2.
As shown in Fig. 2, the coil 3-2 is the vortex-like hollow structure of plane, which is runner hole G, is used for oil inlet
The extension tubule 2-5 of runner 2 is passed through, and realizes the vertical measurement pattern penetrated to oil liquid pipeline.That is, being hung down when monitoring using oil liquid
Direct current passes through the penetration measurement pattern in plane where the vortex-like coil 3-2 of plane.
It successively include the left minor thread 2- for connecting hose as shown in Fig. 6 (a), (b), in 2 main body of oil inlet runner
1, from the left major thread 2-2 of external fixed oil inlet runner, Zuo Yuanpan 2-3, liner plate 2-4 and extension tubule 2-5, Zuo Yuanpan 2-3
There are two left abnormity slot 2-6 to be used for from the spiral shell on the fixed oil inlet runner in inside, the left abnormity position slot 2-6 and left end cap for upper band
Pit C is corresponding；4 threaded hole H of fixing circuit board 3 are provided on liner plate 2-4.
It successively include the right minor thread 4- for connecting hose as shown in Fig. 7 (a), (b), in fuel-displaced 4 main body of runner
1, from the right major thread 4-2 of external fixed fuel-displaced runner, band there are two the right disk 4-4 of right special-shaped slot 4-3 and for gluing
Tap into the variable diameter conical pipe 4-5 in oil stream road 2, the screw thread on the right abnormity position slot 4-3 and right end cap central through hole outer circumference
Hole is corresponding；The internal run-through radius of variable diameter conical pipe 4-5 be greater than oil inlet runner 2 extension tubule 2-5 outer diameter, rest part with
With radius identical inside oil inlet runner completely through.
The lubricating oil abrasive grain on-line monitoring method and process that the present invention uses are as follows:
1, inventive sensor is assembled:
S1 makes the extension tubule 2-5 of oil inlet runner 2 pass through the runner hole G on circuit board 3 and perpendicular to vortex-like coil 3-2
The circuit board 3 to carefully connect the wire is secured with nuts on the liner plate 2-4 of oil inlet runner 2 plane at place；Make prolonging for oil inlet runner 2
Stretch the inside that tubule 2-5 is bonded to the variable diameter conical pipe 4-5 of fuel-displaced runner 4；
Left end cap 1 and cylinder 6 are connected and fixed by S2 with nut, make one end left minor thread 2-1 of oil inlet runner 2 from cylinder 6
Inside pass through left end cap 1 on central through hole B, then from screwed on outside left end cap 1 with left major thread 2-2 cooperate nut, in
The nut of heart through-hole B two sides threaded hole C cooperation；
S3, the 4 threaded hole Es along the circumferential direction uniformly distributed from 6 side surface of cylinder are screwed into screw, clamp, fixed oil inlet runner 2
On liner plate 2-4；
S4 installs plug wire head at the threaded hole D on right end cap 5, makes central through hole on right end cap 5 from fuel-displaced runner 4
The one end right minor thread 4-1 be inserted in, right end cap 5 and cylinder 6 are connected and fixed with nut, then screw on outside right end cap 5 and go out
The nut of right major thread 4-2 cooperation on oil stream road 4, the nut being threadedly engaged with 5 central through hole two sides of right end cap；
2, experimental situation is set up:
S1 installs soft oil pipe on the peristaltic pump of adjustable flow, and oil sump is accessed in one end, and one end is fixed on oil inlet with nut
On the left minor thread 2-1 of runner 2；
S2 accesses oil sump, forms oil liquid with the fixed another soft oil pipe of nut on the right minor thread 4-1 of fuel-displaced runner 4
Circulation loop；
S3 is connected to calculating from the plug wire head lead on right end cap 5 to power supply and data collecting card, then by data collecting card
Machine；
3, expansion on-line monitoring:
S1 opens power supply, and 18~24V electricity is inputted from plug wire head, opens peristaltic pump, and oil liquid starts to drive abrasive grain in circuit
Internal circulation flow, computer are divided using the grain signal that special data signal sampling and processing software captures sensor
Analysis；
S2, the present invention survey the continuous grain signal of typical case obtained as shown in figure 8, it can be seen from the figure that sensor substantially not
It is influenced by abrasive grain is successional, can clearly be presented each grain signal waveform, and noise also very little.Experiments have shown that: the present invention
It is minimum in the actual environment to perceive and export 40 μm of ferromagnetic metal grain signal and 80 μm of non-ferromagnetic metal abrasive grain
Signal；Signal amplitude caused by unlike material abrasive grain and width have specific range, identical material, different size abrasive grains institute
The signal amplitude and width of generation have certain rule.Therefore, these experimental phenomenas are based on, signal processing is subject to, it can be right
The physical attribute information of abrasive grain judges, to analyze wear information entrained by abrasive grain.
Claims (6)
1. the abrasive grain based on the vortex-like coil penetration measurement of plane monitors sensor, including shell, hard runner and circuit on-line
Plate (3), which is characterized in that
The shell includes cylinder (6), and the both ends of cylinder (6) are threadedly coupled fixed left end cap (1) and right end cap (5)；
The hard runner includes oil inlet runner (2) and fuel-displaced runner (4), and two runners are each passed through left end cap (1) and right end cap
(5) and it is fixed from outside with nut；In sensor outer housing cylinder in a manner of gluing between oil inlet runner (2) and fuel-displaced runner (4)
Connection inside body (6)；
The circuit board (3) is installed on the liner plate (2-4) of oil inlet runner (2), and circuit board (3) includes circuit needed for being loaded with monitoring
Circuit board matrix (3-1), monitor required circuit include direct current regulation circuit, oscillation compensation circuit, filtering and amplifying circuit；Its
Middle direct current regulation circuit accesses 18~24V direct current；Compensation abrasive grain can be generated to biography when abrasive grain passes through by vibrating compensation circuit
The positive signal of disturbance is born caused by sensor coil；Filtering and amplifying circuit exports the positive voltage signal of 0~5V；Circuit board matrix (3-
1) it is embedded with the coil (3-2) to connect with oscillation compensation circuit, the surface circuit board matrix (3-1) is provided with and direct current regulation circuit
The binding post (3-3) to connect, and the adjustment of sensitivity knob (3-4) to connect with filtering and amplifying circuit.
2. the abrasive grain according to claim 1 based on the vortex-like coil penetration measurement of plane monitors sensor on-line, special
Sign is, is evenly distributed with 8 countersunk head threaded holes (A) respectively on the left end cap (1) of the sensor outer housing, right end cap (5) circumference and is used for
Be connected with cylinder 6, have respectively at center 1 outwardly extending through-hole (B), center through-hole (B) outer circumference on have 2 respectively
Threaded hole (C) is used to be screwed into screw stationary flowpath from outside；1 is provided between the central through hole and right end cap circumference of right end cap (5)
A threaded hole (D)；Cylinder (6) side surface is along the circumferential direction evenly equipped with 4 threaded holes (E), the position of opening face of threaded hole (E)
In side surface liner plate (2-4) of oil inlet runner (2), for clamping liner plate (2-4) structure on oil inlet runner (2).
3. the abrasive grain according to claim 1 based on the vortex-like coil penetration measurement of plane monitors sensor on-line, special
Sign is, 1 location hole (F) is disposed on each angle described matrix (3-1).
4. the abrasive grain according to claim 1 based on the vortex-like coil penetration measurement of plane monitors sensor on-line, special
Sign is that the coil (3-2) is the vortex-like hollow structure of plane, which is runner hole (G), is used for oil inlet runner (2)
Extension tubule (2-5) pass through；Penetrating in plane where the vortex-like coil of plane (3-2) is vertically flowed through when monitoring using oil liquid
Formula measurement pattern.
5. the abrasive grain according to claim 1 based on the vortex-like coil penetration measurement of plane monitors sensor on-line, special
Sign is, successively include in oil inlet runner (2) main body for connect the left minor thread (2-1) of hose, from outside it is fixed into
The left major thread (2-2) in oil stream road, Zuo Yuanpan (2-3), liner plate (2-4) and extend tubule (2-5), band on Zuo Yuanpan (2-3)
There are two left special-shaped slots (2-6) to be used for from the spiral shell on the fixed oil inlet runner in inside, the left abnormity slot position (2-6) and left end cap
Pit (C) is corresponding；4 threaded holes (H) of fixing circuit board (3) are provided on liner plate (2-4).
6. the abrasive grain according to claim 1 based on the vortex-like coil penetration measurement of plane monitors sensor on-line, special
Sign is, successively includes for connecting the right minor thread (4-1) of hose, fixing from outside in fuel-displaced runner (4) main body
The right major thread (4-2) in oil stream road, band are there are two the right disk (4-4) of right special-shaped slot (4-3) and for being bonded oil inlet stream
The variable diameter conical pipe (4-5) in road (2), the right abnormity slot position (4-3) and the threaded hole in right end cap central through hole outer circumference
It is corresponding；The internal run-through radius of variable diameter conical pipe (4-5) is greater than extension tubule (2-5) outer diameter of oil inlet runner (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466188.1A CN110231396B (en) | 2019-05-31 | 2019-05-31 | Abrasive particle on-line monitoring sensor based on planar vortex coil penetration measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466188.1A CN110231396B (en) | 2019-05-31 | 2019-05-31 | Abrasive particle on-line monitoring sensor based on planar vortex coil penetration measurement |
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| Publication Number | Publication Date |
|---|---|
| CN110231396A true CN110231396A (en) | 2019-09-13 |
| CN110231396B CN110231396B (en) | 2021-03-16 |
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Citations (5)
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| CN110231396B (en) | 2021-03-16 |
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